Why is it against the law for a man living in Delhi to be buried in Mumbai?

In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?

A bomb exploded in a room full of married couples and no one died. How?

Begin with a word, five letters to my name,
Remove the first and last but I am the same
Take out my middle and still, I remain.
What word am I?

Find the smallest sentence with all the English alphabet.

The first box has two white balls. The second box has two black balls. The third box has a white and a black ball.

Boxes are labeled but all labels are wrong!

You are allowed to open one box, pick one ball at random, see its colour and put it back into the box, without seeing the colour of the other ball.

How many such operations are necessary to correctly label the boxes?

One day, I thought of ways that can be used for creating a palindrome. So I decided that I will turn into a larger number by adding the reversed digits to the original number and keep doing it till I finally obtained a palindrome.

I am not sure if this process will always result in a palindrome eventually but I was able to produce a four-digit palindrome. Can you guess my starting number?

What's the only room from which no one can enter or leave

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98